import java.util.concurrent.atomic.AtomicInteger;

public class ThreadDemo31 {
    private static AtomicInteger count = new AtomicInteger(0);

    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() ->{
            for (int i = 0; i < 50000; i++) {
                //相当于count++
                count.getAndIncrement();
                //++count
                //count.incrementAndGet();
            }
        });

        Thread t2 = new Thread(() ->{
            for (int i = 0; i < 50000; i++) {
                count.getAndIncrement();
            }
        });
        t1.start();
        t2.start();

        t1.join();
        t2.join();
        System.out.println("count = " +count);
    }
}
